Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

NA

48°F

9°C

Humidity 93%
Wind Speed SSE 2 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 08 Dec 11:52 PM PST
Extended Forecast for

14 Miles NE Happy Camp CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 38. Southwest wind around 16 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46. Southwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 46 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. South wind around 11 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 51. South southeast wind 5 to 8 mph becoming west southwest in the afternoon.

    High: 51 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. South wind 6 to 8 mph.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 38. Southwest wind around 16 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 46. Southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 41. South wind around 11 mph.
Wednesday
Mostly sunny, with a high near 51. South southeast wind 5 to 8 mph becoming west southwest in the afternoon.
Wednesday Night
Mostly clear, with a low around 39. South wind 6 to 8 mph.
Thursday
Sunny, with a high near 50.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 50.
Friday Night
Mostly clear, with a low around 39.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
A slight chance of rain. Snow level 6900 feet. Partly cloudy, with a low around 37.
Sunday
A chance of rain. Snow level 6600 feet. Partly sunny, with a high near 43.
Sunday Night
A chance of rain. Snow level 6800 feet. Mostly cloudy, with a low around 39.
Monday
A chance of rain. Snow level 7200 feet. Mostly cloudy, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles NE Happy Camp CA
 41.93°N 123.15°W (Elev. 4600 ft)
9:41 pm PST Dec 8, 2025
12am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database